Plant–microbiome interactions: from community assembly to plant health

Nature Reviews Microbiology, Journal Year: 2020, Volume and Issue: 18(11), P. 607 - 621

Published: Aug. 12, 2020

Language: Английский

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Feed Your Friends: Do Plant Exudates Shape the Root Microbiome?

Trends in Plant Science, Journal Year: 2017, Volume and Issue: 23(1), P. 25 - 41

Published: Oct. 17, 2017

Language: Английский

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Microbial Hub Taxa Link Host and Abiotic Factors to Plant Microbiome Variation

PLoS Biology, Journal Year: 2016, Volume and Issue: 14(1), P. e1002352 - e1002352

Published: Jan. 20, 2016

Plant-associated microorganisms have been shown to critically affect host physiology and performance, suggesting that evolution ecology of plants animals can only be understood in a holobiont (host its associated organisms) context. Host-associated microbial community structures are affected by abiotic factors, increased attention is given the role microbiome interactions such as pathogen inhibition. However, little known about how these factors act on community, especially what microbe–microbe interaction dynamics play. We begun address this knowledge gap for phyllosphere microbiomes simultaneously studying three major groups Arabidopsis thaliana symbionts (bacteria, fungi oomycetes) using systems biology approach. evaluated multiple potential control: we sampled various wild A. populations at different times, performed field plantings with genotypes, implemented successive colonization experiments under lab conditions where genotype, was manipulated. Our results indicate both genotype interact plant all microbes. Considering interactions, however, uncovered network interkingdom significant contributions structure. As other scale-free networks, small number taxa, which call "hubs," strongly interconnected severe effect communities. By documenting uncover an important mechanism explaining genotypic signatures control In short, they directly "hub" microbes, which, via transmit effects community. analyzed two microbes (the obligate biotrophic oomycete Albugo basidiomycete yeast fungus Dioszegia) more closely. had strong epiphytic endophytic bacterial colonization. Specifically, alpha diversity decreased beta stabilized presence infection, whereas otherwise varied between plants. Dioszegia, hand, provided evidence direct hub bacteria. The identification "hubs" their importance structuring has crucial implications plant–pathogen research opens new entry points ecosystem management future targeted biocontrol. revelation cascade through communities understand structure perturbations parallel fields including human bioprocesses. particular, parallels "keystone" pathogens open avenues interdisciplinary promise better our understanding functions host-associated microbiomes.

Language: Английский

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Root exudate metabolites drive plant-soil feedbacks on growth and defense by shaping the rhizosphere microbiota

Nature Communications, Journal Year: 2018, Volume and Issue: 9(1)

Published: July 10, 2018

Abstract By changing soil properties, plants can modify their growth environment. Although the microbiota is known to play a key role in resulting plant-soil feedbacks, proximal mechanisms underlying this phenomenon remain unknown. We found that benzoxazinoids, class of defensive secondary metabolites are released by roots cereals such as wheat and maize, alter root-associated fungal bacterial communities, decrease plant growth, increase jasmonate signaling defenses, suppress herbivore performance next generation. Complementation experiments demonstrate benzoxazinoid breakdown product 6-methoxy-benzoxazolin-2-one (MBOA), which accumulates during conditioning phase, both sufficient necessary trigger observed phenotypic changes. Sterilization, profiling complementation reveal MBOA acts indirectly altering microbiota. Our results mechanism determine composition rhizosphere microbiota, plant-herbivore interactions

Language: Английский

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Functional overlap of the Arabidopsis leaf and root microbiota

Nature, Journal Year: 2015, Volume and Issue: 528(7582), P. 364 - 369

Published: Dec. 1, 2015

Language: Английский

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A review on the plant microbiome: Ecology, functions, and emerging trends in microbial application

Journal of Advanced Research, Journal Year: 2019, Volume and Issue: 19, P. 29 - 37

Published: March 20, 2019

Plants have evolved with a plethora of microorganisms having important roles for plant growth and health. A considerable amount information is now available on the structure dynamics microbiota as well functional capacities isolated community members. Due to interesting potential due current challenges in crop production there an urgent need bring microbial innovations into practice. Different approaches microbiome improvement exist. On one hand strains or strain combinations can be applied, however, field success often variable urgently required. Smart, knowledge-driven selection needed use suitable delivery formulations. other hand, farming practices genotype influence thus functioning. Therefore, appropriate breeding leading improved plant-microbiome interactions are avenues increase benefit microbiota. In conclusion, different making new generation inoculants application microbiome-based agro-management lines could lead better microbiome. This paper reviews importance functionalities bacterial discusses concepts regard plant-associated bacteria.

Language: Английский

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Microbial interactions within the plant holobiont

Microbiome, Journal Year: 2018, Volume and Issue: 6(1)

Published: March 27, 2018

Since the colonization of land by ancestral plant lineages 450 million years ago, plants and their associated microbes have been interacting with each other, forming an assemblage species that is often referred to as a "holobiont." Selective pressure acting on holobiont components has likely shaped plant-associated microbial communities selected for host-adapted microorganisms impact fitness. However, high densities detected tissues, together fast generation time more ancient origin compared host, suggest microbe-microbe interactions are also important selective forces sculpting complex assemblages in phyllosphere, rhizosphere, endosphere compartments. Reductionist approaches conducted under laboratory conditions critical decipher strategies used specific cooperate compete within or outside tissues. Nonetheless, our understanding these shaping communities, along relevance host health natural context, remains sparse. Using examples obtained from reductionist community-level approaches, we discuss fundamental role (prokaryotes micro-eukaryotes) community structure health. We provide conceptual framework illustrating among microbiota members establishment maintenance host-microbial homeostasis.

Language: Английский

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Agricultural intensification reduces microbial network complexity and the abundance of keystone taxa in roots

The ISME Journal, Journal Year: 2019, Volume and Issue: 13(7), P. 1722 - 1736

Published: March 8, 2019

Root-associated microbes play a key role in plant performance and productivity, making them important players agroecosystems. So far, very few studies have assessed the impact of different farming systems on root microbiota it is still unclear whether agricultural intensification influences structure complexity microbial communities. We investigated conventional, no-till, organic wheat fungal communities using PacBio SMRT sequencing samples collected from 60 farmlands Switzerland. Organic harbored much more complex network with significantly higher connectivity than conventional no-till systems. The abundance keystone taxa was highest under where lowest. also found strong negative association (R2 = 0.366; P < 0.0001) between connectivity. occurrence best explained by soil phosphorus levels, bulk density, pH, mycorrhizal colonization. majority are known to form arbuscular associations plants belong orders Glomerales, Paraglomerales, Diversisporales. Supporting this, fungi roots soils farming. To our knowledge, this first study report for agroecosystems, we demonstrate that reduces microbiome.

Language: Английский

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Assembly and ecological function of the root microbiome across angiosperm plant species

Proceedings of the National Academy of Sciences, Journal Year: 2018, Volume and Issue: 115(6)

Published: Jan. 22, 2018

Across plants and animals, host-associated microbial communities play fundamental roles in host nutrition, development, immunity. The factors that shape host–microbiome interactions are poorly understood, yet essential for understanding the evolution ecology of these symbioses. Plant roots assemble two distinct compartments from surrounding soil: rhizosphere (microbes roots) endosphere within roots). Root-associated microbes were key land underlie ecosystem processes. However, it is largely unknown how plant has shaped root communities, turn, affect ecology, such as ability to mitigate biotic abiotic stressors. Here we show variation among 30 angiosperm species, which have diverged up 140 million years, affects bacterial diversity composition. Greater similarity microbiomes between hosts leads negative effects on performance through soil feedback, with specific taxa potentially affecting competitive species. Drought also shifts composition microbiomes, most notably by increasing relative abundance Actinobacteria. this drought response varies across host-specific changes Streptomyces associated tolerance. Our results emphasize causes their ecological importance

Language: Английский

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Host genotype and age shape the leaf and root microbiomes of a wild perennial plant

Nature Communications, Journal Year: 2016, Volume and Issue: 7(1)

Published: July 12, 2016

Bacteria living on and in leaves roots influence many aspects of plant health, so the extent a plant's genetic control over its microbiota is great interest to crop breeders evolutionary biologists. Laboratory-based studies, because they poorly simulate true environmental heterogeneity, may misestimate or totally miss certain host genes microbiome. Here we report large-scale field experiment disentangle effects genotype, environment, age year harvest bacterial communities associated with Boechera stricta (Brassicaceae), perennial wild mustard. Host microbiome evident but not roots, varies substantially among sites. Microbiome composition also shifts as plants age. Furthermore, large proportion leaf groups are shared suggesting inoculation from soil. Our results demonstrate how genotype-by-environment interactions contribute complexity assembly natural environments.

Language: Английский

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